Helwig Carbon has been supplying brushes for elevator applications for over 85 years. We offer a full line of carbon, graphite, and composite grade brushes designed to dramatically reduce dusting, minimize maintenance time, and maximize brush and commutator life. Check out our Field Guide for Elevator Carbon Brushes.
Over 60 popular elevator brushes are carried in stock, ready for same day delivery. Custom made elevator brushes can be made in a day or two.
Enter your part number into the search field to find the right brush for your application.
High Speed Turbines
Carbon brushes used on high speed turbine ring applications are the most critical applications in the world. Helwig Carbon has been supplying carbon brushes for these applications for over 85 years. Our H702 and H704 low friction graphite grades have been used extensively on Allis Chalmers, ABB, GE, and Westinghouse units around the world.
Trouble Shooting Tips
Due to the extremely high peripheral speeds it is difficult to maintain good contact with the ring.
· Rings should be round within .001” with less than 6 mils vibration.
· Spring pressure should be checked periodically to insure it is the recommended 2.5 psi for 3600 RPM turbines.
· Free movement of the brushes up and down in the brush holder should also be checked.
This application is susceptible to selective action and an imbalance in current flow. This can lead to a build up of deposits on the inside of the brushholders which can impede the movement of the brush. In extreme cases the brush will be held up in the holder and lose contact with the ring. Regular maintenance checks can help identify and prevent these problems before they become serious.
Low Speed Turbines
Helwig Carbon has a long history of supplying carbon brushes for slow speed hydroelectric turbines. We have several low friction graphite grades that perform successfully on these applications.
Traction & Transit Brushes
Helwig Carbon has a long history of supplying carbon brushes for traction and transit applications we highly recommend the use of our Red Top Pad for improved performance. We have several excellent grades that provide long life and are constructed to meet the vigorous demands of this application.
Fork Lift & Lift Truck Brushes
Helwig Carbon manufactures a variety of carbon brushes for battery operated vehicles including forklifts and golf carts. We have several excellent grades of material that are made in-house and provide long life and good performance.
Several of the most popular brushes for lift truck motors are stocked and available for same day shipment. Custom made brushes can be produced in just a few days.
In order to produce a high quality, competitively priced product, we press-to-size the carbon bodies and then do final fabrication.
Helwig Carbon has full pressed-to-size (PTS) capabilities for high volume and custom parts. Our unique capabilities in both molding and machining brushes allow us to provide the highest quality parts using the most economical manufacturing methods. With our extensive application analysis you can be assured of maximum performance and life out of your existing product design.
· In-house tooling capabilities
· Molded-in shunts/wires
· On-site motor test facility
· Kanban, stock and release programs
· Full assembly capabilities
· Quick, expert prototyping available
Helwig Carbon has been servicing the mining industry for over 60 years. Our carbon brushes are used on Bucyrus Erie, P&H, LeTourneau, Marion, and Page equipment. We manufacture a full range of carbon brushes specially designed to meet the rigors of the mining applications on draglines, shovels, crushers, conveyors, and loaders.
Power Tool Brushes
Helwig Carbon manufactures a full range of carbon brushes for power tools. We are a long-term supplier to Milwaukee Electric Tool and Robert Bosch. Our carbon brushes are specifically designed to provide excellent performance and long life.
Our unique capabilities in both molding and machining brushes allow us to provide the highest quality parts using the most economical manufacturing methods. With our extensive application analysis you can be assured of maximum performance and life from your existing product design.
· In-house tooling capabilities
· Assembly capabilities
· On-site motor test facility with dynamometer
· Research and development on-site
· Custom grade formulations
· Ultrasonic welding
· Lead free soldering
Helwig Carbon manufactures a variety of carbon brushes used on aviation and military applications. Our carbon brushes and special grades are designed to handle the stringent requirements and high altitude common with these critical applications.
· Precision fabrication
· Special custom grades to meet demanding applications
· High altitude treatments for superior performance and longer life
· ISO 9001
· Application analysis and design recommendations
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